/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/PBDRigidClustering.h
GetStrainArray The strain array is used to store the maximum strain allowed for a individual body in the simulation. This attribute is initialized during the creation of the cluster body, can be updated during the evaluation of the simulation.
[TArrayCollectionArray](API\Runtime\Engine\Physics\Experimental\TArrayCollectionArray)< [FRealSingle](API\Runtime\ChaosCore\Chaos\FRealSingle) > & GetStrainArray()